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Authors
Zhao, Rongfei
Chang, Haohao
Yu, Jincheng
Huang, Donghao
Yang, Defeng
Yang, Huimin
Zhou, Lili
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Article History
Received: 1 October 2025
Accepted: 16 January 2026
First Online: 24 January 2026
Declarations
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: The authors declare no competing interests.
: Soil samples were collected at Heshan Farm, Nenjiang City, Heilongjiang Province (core area of the black soil region in Northeast China). Prior to sampling, we obtained formal permission from the administrative authority of Heshan Farm. The sampling process complied with the Regulations on the Protection and Utilization of Black Soil in Heilongjiang Province and did not involve any illegal collection or use of black soil.
